Windows Backup Guide

Outlook Data Backup

Outlook is a Microsoft's premier application that is
integrated into Microsoft Office 97, 98, 2000, 2003, 2007, 2010 and Microsoft
Exchange Server. Outlook provides complete integration of e-mail,
calendaring, and contact management. Outlook helps you find and
organize information so that you can work seamlessly with Office
applications, communicate and share information more effectively.
Outlook enables you to filter and organize e-mail messages, integrate
and manage e-mail from multiple e-mail accounts, personal and group
calendars, contacts, folders, and tasks.

Personal Folders (.pst) files. The most important Outlook
files. Your personal folders .pst file contains all of your
local Outlook folders, such as Calendar, Inbox, Tasks, Sent Items,
Outbox, Deleted Items, and user-created folders. When running, Outlook
usually keeps its .pst folders partially locked, so it is
recommended to close Outlook prior to making a backup.